KillDisk

Do you have an old PC? Maybe you're thinking about giving it away or donating it to someone. If so, you might want to take a look at KillDisk.

They have a special download version that will automatically create a bootable floppy disk. Just insert the disk, boot the computer and it will start deleting the hard disk. It's important to use a utility like this. You certainly don't want any personal information, especially credit card numbers, to end up in the wrong hands.

There is a free version of KillDisk, so take a look!